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authorVincent Sanders <vince@kyllikki.org>2016-05-05 22:28:51 +0100
committerVincent Sanders <vince@kyllikki.org>2016-05-15 13:44:34 +0100
commitd21447d096a320a08b3efb2b8768fad0dcdcfd64 (patch)
tree1a83814b7c9e94b2f13c473261f23dd3a17dee64 /framebuffer/framebuffer.c
parent2cbb337756d9af5bda4d594964d446439f602551 (diff)
downloadnetsurf-d21447d096a320a08b3efb2b8768fad0dcdcfd64.tar.gz
netsurf-d21447d096a320a08b3efb2b8768fad0dcdcfd64.tar.bz2
move frontends into sub directory
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-rw-r--r--framebuffer/framebuffer.c467
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diff --git a/framebuffer/framebuffer.c b/framebuffer/framebuffer.c
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-/*
- * Copyright 2008 Vincent Sanders <vince@simtec.co.uk>
- *
- * Framebuffer interface
- *
- * This file is part of NetSurf, http://www.netsurf-browser.org/
- *
- * NetSurf is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * NetSurf is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <libnsfb.h>
-#include <libnsfb_plot.h>
-#include <libnsfb_event.h>
-#include <libnsfb_cursor.h>
-
-#include "utils/utils.h"
-#include "utils/log.h"
-#include "utils/utf8.h"
-#include "desktop/browser.h"
-#include "desktop/plotters.h"
-#include "image/bitmap.h"
-
-#include "framebuffer/gui.h"
-#include "framebuffer/fbtk.h"
-#include "framebuffer/framebuffer.h"
-#include "framebuffer/font.h"
-#include "framebuffer/bitmap.h"
-
-/* netsurf framebuffer library handle */
-static nsfb_t *nsfb;
-
-
-static bool
-framebuffer_plot_disc(int x, int y, int radius, const plot_style_t *style)
-{
- nsfb_bbox_t ellipse;
- ellipse.x0 = x - radius;
- ellipse.y0 = y - radius;
- ellipse.x1 = x + radius;
- ellipse.y1 = y + radius;
-
- if (style->fill_type != PLOT_OP_TYPE_NONE) {
- nsfb_plot_ellipse_fill(nsfb, &ellipse, style->fill_colour);
- }
-
- if (style->stroke_type != PLOT_OP_TYPE_NONE) {
- nsfb_plot_ellipse(nsfb, &ellipse, style->stroke_colour);
- }
- return true;
-}
-
-static bool
-framebuffer_plot_arc(int x, int y, int radius, int angle1, int angle2, const plot_style_t *style)
-{
- return nsfb_plot_arc(nsfb, x, y, radius, angle1, angle2, style->fill_colour);
-}
-
-static bool
-framebuffer_plot_polygon(const int *p, unsigned int n, const plot_style_t *style)
-{
- return nsfb_plot_polygon(nsfb, p, n, style->fill_colour);
-}
-
-
-#ifdef FB_USE_FREETYPE
-static bool
-framebuffer_plot_text(int x, int y, const char *text, size_t length,
- const plot_font_style_t *fstyle)
-{
- uint32_t ucs4;
- size_t nxtchr = 0;
- FT_Glyph glyph;
- FT_BitmapGlyph bglyph;
- nsfb_bbox_t loc;
-
- while (nxtchr < length) {
- ucs4 = utf8_to_ucs4(text + nxtchr, length - nxtchr);
- nxtchr = utf8_next(text, length, nxtchr);
-
- glyph = fb_getglyph(fstyle, ucs4);
- if (glyph == NULL)
- continue;
-
- if (glyph->format == FT_GLYPH_FORMAT_BITMAP) {
- bglyph = (FT_BitmapGlyph)glyph;
-
- loc.x0 = x + bglyph->left;
- loc.y0 = y - bglyph->top;
- loc.x1 = loc.x0 + bglyph->bitmap.width;
- loc.y1 = loc.y0 + bglyph->bitmap.rows;
-
- /* now, draw to our target surface */
- if (bglyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO) {
- nsfb_plot_glyph1(nsfb,
- &loc,
- bglyph->bitmap.buffer,
- bglyph->bitmap.pitch,
- fstyle->foreground);
- } else {
- nsfb_plot_glyph8(nsfb,
- &loc,
- bglyph->bitmap.buffer,
- bglyph->bitmap.pitch,
- fstyle->foreground);
- }
- }
- x += glyph->advance.x >> 16;
-
- }
- return true;
-
-}
-#else
-static bool framebuffer_plot_text(int x, int y, const char *text, size_t length,
- const plot_font_style_t *fstyle)
-{
- enum fb_font_style style = fb_get_font_style(fstyle);
- int size = fb_get_font_size(fstyle);
- const uint8_t *chrp;
- size_t nxtchr = 0;
- nsfb_bbox_t loc;
- uint32_t ucs4;
- int p = FB_FONT_PITCH * size;
- int w = FB_FONT_WIDTH * size;
- int h = FB_FONT_HEIGHT * size;
-
- y -= ((h * 3) / 4);
- /* the coord is the bottom-left of the pixels offset by 1 to make
- * it work since fb coords are the top-left of pixels */
- y += 1;
-
- while (nxtchr < length) {
- ucs4 = utf8_to_ucs4(text + nxtchr, length - nxtchr);
- nxtchr = utf8_next(text, length, nxtchr);
-
- if (!codepoint_displayable(ucs4))
- continue;
-
- loc.x0 = x;
- loc.y0 = y;
- loc.x1 = loc.x0 + w;
- loc.y1 = loc.y0 + h;
-
- chrp = fb_get_glyph(ucs4, style, size);
- nsfb_plot_glyph1(nsfb, &loc, chrp, p, fstyle->foreground);
-
- x += w;
-
- }
-
- return true;
-}
-#endif
-
-
-static bool
-framebuffer_plot_bitmap(int x, int y,
- int width, int height,
- struct bitmap *bitmap, colour bg,
- bitmap_flags_t flags)
-{
- nsfb_bbox_t loc;
- nsfb_bbox_t clipbox;
- bool repeat_x = (flags & BITMAPF_REPEAT_X);
- bool repeat_y = (flags & BITMAPF_REPEAT_Y);
- int bmwidth;
- int bmheight;
- int bmstride;
- enum nsfb_format_e bmformat;
- unsigned char *bmptr;
- nsfb_t *bm = (nsfb_t *)bitmap;
-
- /* x and y define coordinate of top left of of the initial explicitly
- * placed tile. The width and height are the image scaling and the
- * bounding box defines the extent of the repeat (which may go in all
- * four directions from the initial tile).
- */
-
- if (!(repeat_x || repeat_y)) {
- /* Not repeating at all, so just plot it */
- loc.x0 = x;
- loc.y0 = y;
- loc.x1 = loc.x0 + width;
- loc.y1 = loc.y0 + height;
-
- return nsfb_plot_copy(bm, NULL, nsfb, &loc);
- }
-
- nsfb_plot_get_clip(nsfb, &clipbox);
- nsfb_get_geometry(bm, &bmwidth, &bmheight, &bmformat);
- nsfb_get_buffer(bm, &bmptr, &bmstride);
-
- /* Optimise tiled plots of 1x1 bitmaps by replacing with a flat fill
- * of the area. Can only be done when image is fully opaque. */
- if ((bmwidth == 1) && (bmheight == 1)) {
- if ((*(nsfb_colour_t *)bmptr & 0xff000000) != 0) {
- return nsfb_plot_rectangle_fill(nsfb, &clipbox,
- *(nsfb_colour_t *)bmptr);
- }
- }
-
- /* Optimise tiled plots of bitmaps scaled to 1x1 by replacing with
- * a flat fill of the area. Can only be done when image is fully
- * opaque. */
- if ((width == 1) && (height == 1)) {
- if (framebuffer_bitmap_get_opaque(bm)) {
- /** TODO: Currently using top left pixel. Maybe centre
- * pixel or average value would be better. */
- return nsfb_plot_rectangle_fill(nsfb, &clipbox,
- *(nsfb_colour_t *)bmptr);
- }
- }
-
- /* get left most tile position */
- if (repeat_x)
- for (; x > clipbox.x0; x -= width);
-
- /* get top most tile position */
- if (repeat_y)
- for (; y > clipbox.y0; y -= height);
-
- /* set up top left tile location */
- loc.x0 = x;
- loc.y0 = y;
- loc.x1 = loc.x0 + width;
- loc.y1 = loc.y0 + height;
-
- /* plot tiling across and down to extents */
- nsfb_plot_bitmap_tiles(nsfb, &loc,
- repeat_x ? ((clipbox.x1 - x) + width - 1) / width : 1,
- repeat_y ? ((clipbox.y1 - y) + height - 1) / height : 1,
- (nsfb_colour_t *)bmptr, bmwidth, bmheight,
- bmstride * 8 / 32, bmformat == NSFB_FMT_ABGR8888);
-
- return true;
-}
-
-static bool
-framebuffer_plot_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *style)
-{
- nsfb_bbox_t rect;
- bool dotted = false;
- bool dashed = false;
-
- rect.x0 = x0;
- rect.y0 = y0;
- rect.x1 = x1;
- rect.y1 = y1;
-
- if (style->fill_type != PLOT_OP_TYPE_NONE) {
- nsfb_plot_rectangle_fill(nsfb, &rect, style->fill_colour);
- }
-
- if (style->stroke_type != PLOT_OP_TYPE_NONE) {
- if (style->stroke_type == PLOT_OP_TYPE_DOT)
- dotted = true;
-
- if (style->stroke_type == PLOT_OP_TYPE_DASH)
- dashed = true;
-
- nsfb_plot_rectangle(nsfb, &rect, style->stroke_width, style->stroke_colour, dotted, dashed);
- }
-
- return true;
-}
-
-static bool
-framebuffer_plot_line(int x0, int y0, int x1, int y1, const plot_style_t *style)
-{
- nsfb_bbox_t rect;
- nsfb_plot_pen_t pen;
-
- rect.x0 = x0;
- rect.y0 = y0;
- rect.x1 = x1;
- rect.y1 = y1;
-
- if (style->stroke_type != PLOT_OP_TYPE_NONE) {
-
- if (style->stroke_type == PLOT_OP_TYPE_DOT) {
- pen.stroke_type = NFSB_PLOT_OPTYPE_PATTERN;
- pen.stroke_pattern = 0xAAAAAAAA;
- } else if (style->stroke_type == PLOT_OP_TYPE_DASH) {
- pen.stroke_type = NFSB_PLOT_OPTYPE_PATTERN;
- pen.stroke_pattern = 0xF0F0F0F0;
- } else {
- pen.stroke_type = NFSB_PLOT_OPTYPE_SOLID;
- }
-
- pen.stroke_colour = style->stroke_colour;
- pen.stroke_width = style->stroke_width;
- nsfb_plot_line(nsfb, &rect, &pen);
- }
-
- return true;
-}
-
-
-static bool
-framebuffer_plot_path(const float *p,
- unsigned int n,
- colour fill,
- float width,
- colour c,
- const float transform[6])
-{
- LOG("path unimplemented");
- return true;
-}
-
-static bool
-framebuffer_plot_clip(const struct rect *clip)
-{
- nsfb_bbox_t nsfb_clip;
- nsfb_clip.x0 = clip->x0;
- nsfb_clip.y0 = clip->y0;
- nsfb_clip.x1 = clip->x1;
- nsfb_clip.y1 = clip->y1;
-
- return nsfb_plot_set_clip(nsfb, &nsfb_clip);
-}
-
-const struct plotter_table fb_plotters = {
- .clip = framebuffer_plot_clip,
- .arc = framebuffer_plot_arc,
- .disc = framebuffer_plot_disc,
- .line = framebuffer_plot_line,
- .rectangle = framebuffer_plot_rectangle,
- .polygon = framebuffer_plot_polygon,
- .path = framebuffer_plot_path,
- .bitmap = framebuffer_plot_bitmap,
- .text = framebuffer_plot_text,
- .option_knockout = true,
-};
-
-
-static bool framebuffer_format_from_bpp(int bpp, enum nsfb_format_e *fmt)
-{
- switch (bpp) {
- case 32:
- *fmt = NSFB_FMT_XRGB8888;
- break;
-
- case 24:
- *fmt = NSFB_FMT_RGB888;
- break;
-
- case 16:
- *fmt = NSFB_FMT_RGB565;
- break;
-
- case 8:
- *fmt = NSFB_FMT_I8;
- break;
-
- case 4:
- *fmt = NSFB_FMT_I4;
- break;
-
- case 1:
- *fmt = NSFB_FMT_I1;
- break;
-
- default:
- LOG("Bad bits per pixel (%d)\n", bpp);
- return false;
- }
-
- return true;
-}
-
-
-
-nsfb_t *
-framebuffer_initialise(const char *fename, int width, int height, int bpp)
-{
- enum nsfb_type_e fbtype;
- enum nsfb_format_e fbfmt;
-
- /* bpp is a proxy for the framebuffer format */
- if (framebuffer_format_from_bpp(bpp, &fbfmt) == false) {
- return NULL;
- }
-
- fbtype = nsfb_type_from_name(fename);
- if (fbtype == NSFB_SURFACE_NONE) {
- LOG("The %s surface is not available from libnsfb\n", fename);
- return NULL;
- }
-
- nsfb = nsfb_new(fbtype);
- if (nsfb == NULL) {
- LOG("Unable to create %s fb surface\n", fename);
- return NULL;
- }
-
- if (nsfb_set_geometry(nsfb, width, height, fbfmt) == -1) {
- LOG("Unable to set surface geometry\n");
- nsfb_free(nsfb);
- return NULL;
- }
-
- nsfb_cursor_init(nsfb);
-
- if (nsfb_init(nsfb) == -1) {
- LOG("Unable to initialise nsfb surface\n");
- nsfb_free(nsfb);
- return NULL;
- }
-
- return nsfb;
-
-}
-
-bool
-framebuffer_resize(nsfb_t *nsfb, int width, int height, int bpp)
-{
- enum nsfb_format_e fbfmt;
-
- /* bpp is a proxy for the framebuffer format */
- if (framebuffer_format_from_bpp(bpp, &fbfmt) == false) {
- return false;
- }
-
- if (nsfb_set_geometry(nsfb, width, height, fbfmt) == -1) {
- LOG("Unable to change surface geometry\n");
- return false;
- }
-
- return true;
-
-}
-
-void
-framebuffer_finalise(void)
-{
- nsfb_free(nsfb);
-}
-
-bool
-framebuffer_set_cursor(struct fbtk_bitmap *bm)
-{
- return nsfb_cursor_set(nsfb, (nsfb_colour_t *)bm->pixdata, bm->width, bm->height, bm->width, bm->hot_x, bm->hot_y);
-}
-
-nsfb_t *framebuffer_set_surface(nsfb_t *new_nsfb)
-{
- nsfb_t *old_nsfb;
- old_nsfb = nsfb;
- nsfb = new_nsfb;
- return old_nsfb;
-}